A rare case of pseudoglandular schwannoma

Abstract
A pseudoglandular schwannoma is a rare benign tumor. Controversy in the literature regarding the histogenesis of pseudoglandular schwannoma exists. Histological features of pseudoglandular schwannomas are different than those found in classical schwannomas. A patient with pseudoglandular schwannomas has a good prognosis, and no cases of recurrence have been reported in the literature. '+st+' Ferry JA, Dickersin GR. Pseudoglandular schwannoma. Am J Clin Pathol. 1988;89(4):546–52. Chan JKC, Fok KO. Pseudoglandular schwannoma. Histopathology 1996;29:481–3. Robinson CA, Curry B, Rewcastle NB. Pseudoglandular elements in schwannoma. Arch Pathol Lab Med. 2005;129:1106–12. Ud Din N, Ahmad Z, Ahmed, A. Schwannomas with pseudoglandular elements: clinicopathologic study of 61 cases. Ann Diagn Pathol. 2016;20:24–28. Ruggeri F, De Cerchio L, Bakacs A, Orlandi A, Lunardi P. Pseudoglandular schwannoma of the cauda equina. J Neurosurg Spine. 2006;5:543–45. Brooks JJ, Draffen RM. Benign glandular schwannoma. Arch Pathol Lab Med. 1992; 116:192–5. Fletcher CDM, Madziwa D, Heydermm E, McKee PH. Benign dermal schwannoma with glandular elements—true heterology or a local “organizer” effect? Clin Exp Dermatol. 1986;11:475–85. Deng A, Petrali J, Jaffe D, Sina B, Gaspari A. Benign cutaneous pseudoglandular schwannoma. A case report. Am J Dermatopathol. 2005;27:432–5. Rishi K, Coffey D, Javed R, Powell S, Takei H. Immunohistochemical comparison of spindle cell lesions: Schwannoma versus fibroblastic meningioma. FASEB J. 2007;21:389. Park JY, Park H, Park NJ, Park JS, Sung HJ, Lee SS. Use of calretinin, CD56, and CD34 for differential diagnosis of schwannoma and neurofibroma. Korean J Pathol 2011; 45:30–5. Sundarkrishnan L, Bradish JR, Oliai BR, Hosler GA. Cutaneous Cellular Pseudoglandular Schwannoma: An Unusual Histopathologic Variant. Am J Dermatopathol.2016;38(4):315–8. Aksoy A, Sır E. Results of surgical treatment of ulnar nerve schwannomas arising from upper extremity: Presentation of 15 cases with review of literature. J Surg Med. 2019;3(2):159-62. Copyright (c) 2022 Fadime Eda Gökalp Satıcı, Hamide Sayar This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.